Notizen/Notes Polyazanaphthalenes, I The Reaction of Ethyl 6??Amino??5??cyano??4??aryl??2??methyl??4H??pyran??3??carboxylate with Nucleophilic Reagents

AFA Harb, AHM Hesien, SA Metwally…

Index: Harb, Abdel-Fattah A.; Hesien, Abdel-Haleem M.; Metwally, Saoud A.; Elnagdi, Mohamed Hilmy Liebigs Annalen der Chemie, 1989 , p. 585 - 588

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Abstract

Abstract Ethyl 6-amino-5-cyano-4-aryl-2-methyl-4H-pyran-3-carboxylates 4 could be converted into 1, 6-diazanaphthalene, pyrano-[2, 3-c] pyrazole, isoxazolo [3, 4-b] pyridine, pyrano [2, 3-b] pyridine, 1, 8-diazanaphthalene, and pyrano [2, 3-d] pyridine derivatives on treatment with malononitrile, hydrazine hydrate, hydroxylamine hydrochloride,( arylmethylene) malononitrile, cyanoacetamide, and acetic anhydride, respectively.